<!--The content below is only a placeholder and can be replaced.-->
<div style="text-align:center" class="my-hero-links">
  <a routerLink="/heroes">没有参数</a>
  <a routerLink="/heroes/444">只有id</a>
  <a routerLink="/heroes/444/dffgd">有俩参数</a>
  <a routerLink="/heroes/444/dffgd/56">有仨参数</a>
</div>
<hr>
<router-outlet></router-outlet>